His term as a missus is only recorded the History of the Church of Reims (Historia Remensis ecclesiae) of Flodoard (died 966), in a section based on the Capitulare missorum specialia of 802.
[4][5] According to Flodoard, "that Emperor Charlemagne put a great deal of trust in [Wulfar] is proven by the fact that he committed to his safekeeping fifteen noble hostages of the Saxons whom he had brought back from Saxony.
[5] The archbishops of Reims began issuing a type of document called an ordinatio servitiorum ("ordering of services"), an early form of polyptych, in the eighth century.
[4] Some sources say that he was alive but gravely ill in October 816, when Pope Stephen IV visited the cathedral of Reims in order to crown the Emperor Louis the Pious.
When the bishops of the province gathered to confirm him, they found him unable to read the Vulgate Bible in its Latin and the emperor's candidate, Ebbo, was chosen archbishop instead.